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de las Heras, H.* ; Tischenko, O. ; Schlattl, H. ; Xu, Y.* ; Hoeschen, C.

Dose reduction potential of the scanning geometry CT D'OR: A simulation study.

Proc. SPIE 7258:72585R (2009)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
The sampling geometry of CT-scanners plays an important role in the reconstruction of images. We have previously reported a test-device that directly collects the Radon data within a special scanning geometry, whose acquired data can be efficiently treated with series expansion algorithms such as, for example, OPED (Orthogonal Polynomial Expansion on Disc). This geometry has the potential of reducing the radiation exposure of the patient by about a factor of two. However, a fourth of the data must be obtained by interpolation within the measured projections. In this contribution, we show by a Monte Carlo simulation that this interpolation has no significant influence on the quality of the reconstructions.
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Publication type Article: Journal article
Document type Scientific Article
Editors Samei, E.* ; Hsieh, J.*
Keywords Ct ; Reconstruction ; Scanning Device ; Scanning Geometry
ISSN (print) / ISBN 0277-786X
e-ISSN 1996-756X
Journal Proceedings of SPIE
Quellenangaben Volume: 7258, Issue: , Pages: , Article Number: 72585R Supplement: ,
Series Proceedings of SPIE
Publisher SPIE
Publishing Place Bellingham, WA
Reviewing status Peer reviewed
Institute(s) Institute of Radiation Protection (ISS)